EP0609543B1 - Ski équipé d'un dispositif d'amortissement - Google Patents
Ski équipé d'un dispositif d'amortissement Download PDFInfo
- Publication number
- EP0609543B1 EP0609543B1 EP93120492A EP93120492A EP0609543B1 EP 0609543 B1 EP0609543 B1 EP 0609543B1 EP 93120492 A EP93120492 A EP 93120492A EP 93120492 A EP93120492 A EP 93120492A EP 0609543 B1 EP0609543 B1 EP 0609543B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ski
- blade
- shock absorbing
- flexion
- absorbing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C5/00—Skis or snowboards
- A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
- A63C5/075—Vibration dampers
Definitions
- the present invention relates to a ski such as an alpine ski, a cross-country ski background, a monoski or a snowboard. It relates more particularly to a ski equipped with a vibration damping device.
- skis made thanks to a structure more or less flexible.
- the structure includes generally peripheral protective elements, internal elements of resistance to resist bending and torsional stresses, and a core. These elements are assembled by gluing or injection, the assembly being carried out generally hot in a mold having the final shape of the ski, with a front part strongly raised with a spatula, a rear part slightly raised in heel, arched central part.
- the document EP-A-0 490 044 is a ski provided with a stiffener connected to a base flexibly by two remote flexible interfaces, one of the other.
- the stiffener is used to complete the stiffness of the base without any effect depreciation is sought per se.
- the present invention seeks to remedy the various drawbacks mentioned above and offers a particularly simple, effective solution and reliable to vibration damping problems, by combining the advantages of local vibration dissipation through deformation minimal, and offset by taking advantage of the displacement much more important.
- the device of the invention also does not provide stiffness too much additional local skiing.
- the ski equipped with a damping device of the type includes a bending piece connected to the ski by damping means.
- the bending piece is a flexible bending blade whose stiffness is negligible compared to the ski itself and which is connected to the ski mobile way, by at least two damping means each forming a flexible connection means of the flexion blade on the ski, constituted by a soft material interface subjected to shear during relative movement of the bending blade with respect to the ski; said damping means being spaced longitudinally by a certain distance "D"; the first way being located in the zone of maximum deformation by the third bending mode and the first mode of torsion or in the zone of maximum deformation by the second flexion mode and the second means being located in the area of maximum deformation by the first bending mode.
- D certain distance
- the bending blade is a blade, a profile or a metal rod, made of aluminum or steel, or made of composite material. It has a section between 5 and 300 mm 2 . Its length is between 100 and 1,200 millimeters. It should be noted that the blade is flexible in bending and does not generate static, additional bending stiffness (that is to say that the stiffness is negligible compared to the rest of the ski).
- Figures 1 to 3 show a first embodiment of the invention.
- Figure 1 is a side view, Figures 1a and 1b illustrating details of construction.
- Figure 2 is a top view.
- Figure 3 is a side view of the ski in the flex position, the figures 3a and 3b illustrating operating details.
- Figures 4 and 5 show another embodiment, Figure 4 being a partial top view, while FIG. 5 is a partial view back in perspective.
- Figures 6 and 7 show a variant of the invention, Figure 6 being a side view of FIG. 7 being a top view.
- Figures 8 to 10 illustrate an alternative embodiment, Figure 8 being a side view, Figure 9 being a top view, while Figure 10 is a sectional view along X-X.
- Figure 11 is a side view according to a variant of the invention.
- Figure 12 is a sectional view of a detail according to a mode particular.
- Figures 13 and 14 are views from above and respectively the axis (A, AO) of a surfboard equipped with the device according to the invention.
- the damping device (1) is intended to be connected to a ski with the general reference (2).
- Said ski being known per se, it does not will not be described in detail.
- it consists of a elongated beam (3) having its own distribution of thickness and width, therefore its own stiffness. It includes a central part (4) also called mounting the bindings (5, 6) intended to retain the boot on the ski, the binding front (5) being commonly known as a stop, while the rear fixing (6) is generally called heel.
- the front end (7) of the ski (2) is raised to form the spatula (8), while the rear end (9) is also to form the heel (10) of the ski.
- the beam also comprises a lower surface of sliding (11) and an upper surface (12). Note that the contact of the surface lower (11) with snow is between the front contact point (13) and the point rear contact (14) corresponding to the places where said lower surface starts to get up.
- Said damping device bearing the general reference (1) is consisting of a bending blade (15).
- the latter is for example constituted by an aluminum strip of thickness "e” between 1 and 5 millimeters, of width "l” between 10 and 60 millimeters and a length "L” included between 100 and 1,200 millimeters.
- the bending blade (15) is connected to ski movably longitudinally by damping means, so as to be able to move completely and over its entire length relative to the ski.
- the first connection zone (16) of said flexion blade (15) is connected skiing by first connecting means (M1), while the second zone of connection (17) of said blade (15) is connected to the ski by two second means of connection (M2).
- the second zone of link (17) is spaced longitudinally from the first link area (16) of an average distance (D), while the first (M1) and the second (M2) connecting means are also damping means.
- the damping device is, for example, disposed at the front of the ski; so, the bending blade (15) extends longitudinally over a length "L" between the front stop (5) and the front contact point (13).
- FIGS 1 to 3 illustrate a first embodiment according to which the two connecting means (M1, M2) are flexible.
- the front end constituting the first connection zone (16) of the flexion blade (15) is linked to the upper surface of the ski by a first damping means (M1) constituting the flexible connection means.
- M1 constituting the flexible connection means.
- an interface (18) produced by a layer of a flexible material of the elastic type and in particular of the viscoelastic type.
- This layer of thickness "e1" is glued or welded on the one hand under the lower surface (19) of the blade, and on the other hand on the upper surface (12) of said ski (2).
- the first interface (18) is fixed under the blade (15) and on the upper surface (12) of the ski, either by a thermosetting resin of the polyester, vinylester or polyurethane epoxy type, or by a thermoplastic film or any other means. .
- the rear end constituting the second connection zone (17) of the flexion blade (15) is connected to the ski by a second damping means (M2) similar to the first means.
- M2 second damping means
- This layer of thickness "e2" is glued or welded on the one hand under the lower surface (19) of the blade, and on the other hand on the upper surface (12) of said ski (2).
- the surface of the layer is between 200 and 6000 mm 2 .
- the shape of the layer can be rectangular, but can take any other form.
- the interface (20) is fixed under the blade (15) and on the upper surface of the ski, either by a thermosetting resin of the polyester, vinylester or polyurethane epoxy type, or by a thermoplastic film or any other means.
- Figures 1, 1a, 1b, 3, 3a and 3b schematically illustrate the how depreciation works.
- Figures 1, 1a and 1b show the ski in the state rest. In this resting situation, point “a1" of the front end (16) of the blade corresponds to point "b1" of the upper surface of the ski.
- the bending blade (15) moves longitudinally by compared to the upper surface of the ski and we see that the point "a1” has moved forward, a distance “d1" from point "b1", while the point “a2” has moved backwards relative to the corresponding point "b2", from a distance "d2".
- This displacement there is shearing of the layers of flexible material, and therefore damping.
- the choice of interface material and of its dimensions determines the depreciation conditions.
- the two interfaces (18) and (20) could be strictly identical, but they can advantageously be different. They could by example have different dimensions and / or be made of a material different. Thus, the thickness "e2" of the second interface (20) could be different, and for example greater than the thickness "e1" of the first interface (18), as illustrated in FIGS. 1 to 3. Similarly, the first interface (18) could be of harder material than the material of the second interface (20).
- the first interface (18) which is located in the area where there is a maximum of deformation energy by the third mode of bending and the first mode of torsion, must therefore dissipate these two types of vibration, and it can, for this purpose, be made of a material viscoelastic with a hardness of around 60 Shores A and having a thickness about 0.5 millimeters.
- the second interface (20) which is located in rear near the central area (2) of the ski, must dissipate the first bending mode and it can be made of a viscoelastic material of lower hardness at 20 Shores A and have a thickness of 4 millimeters.
- the first interface (18) is located in the area where there is a maximum of deformation energy by the second flexion mode, and the second interface (20) which is located in rear near the central area (2) should dissipate the first bending mode.
- the bending blade (15) constituting a connecting element between the two interfaces (18, 20), making it possible to obtain a relative displacement relative to the ski, more important from the rear end (17) thereof, as illustrated in Figures 3, 3a and 3b, where the displacement "d2" is greater than the displacement "d1".
- the bending blade can take any desired shape and in particular that which is illustrated by way of example, in FIGS. 4 and 5.
- the blade (15) is in the form of a profile having a rib central extending over a certain length of the blade, so as to avoid buckling of the blade.
- an enlarged area (160) is linked to the ski surface by a front interface (180).
- the blade or profile can be produced by injection in charged plastic material.
- the modulus of the material as well that the section of the blade is chosen so as to obtain the stiffness in compression wanted.
- the blade can be replaced by a simple cylindrical rod or rectangular of small section, so as not to exceed values in too much compression.
- damping device (1) can be arranged on the ski, other than on the front, and in particular be arranged at the rear of the ski, as this is shown in Figures 6 and 7 where elements similar to the mode of previous production, have the same references. So everything that has been described for the device placed at the front, illustrated in Figures 1 to 5, is valid for the device placed at the back.
- the bending blade could extend as far as the central zone (4) of the ski, as shown in FIGS. 8 to 10.
- the bending blade (15) passes freely under the base plate (21) of the stop, the underside of which comprises a hollow profile (22) whose dimensions are larger than the dimensions of said blade (15), to allow passage and free movement.
- the two means of connection and damping (M1, M2) are made by a layer of material viscoelastic bonded to both the blade and the ski by bonding or welding, so that the damping is obtained by the shearing of the elastic layer.
- FIG. 11 illustrates a particular mode where a third means damping (M3) is arranged between modes (M1) and (M2), respectively mean distance "D1" from (M1) and “D2" from (M2).
- the means (M3) can be of everything type, as described above, i.e. type with flexible interface, dry or viscous friction.
- FIG. 12 illustrates the case of a device integrated into the structure of the ski.
- the ski is provided with a longitudinal internal housing (40) and allows the blade to move freely when the ski is stressed.
- Housing is covered with an internal reinforcing layer (41) and a protective top and decoration (42).
- Figures 13 and 14 illustrate the use of the device of the invention on a snowboard (43).
- the surf is used asymmetrically, the surfer adopts a position of conduct which causes it to exert efforts towards the toes (in “front side") and in the direction of the heels (in “back side”) along an axis (CC ') substantially corresponding to the axis of symmetry of the fasteners (44, 45).
- the device may be advantageous to orient the device more or less by an angle ( ⁇ ) by relative to the median longitudinal axis (BB ') of the surf. It goes without saying that the device could have another provision and in particular that illustrated in fine lines interrupted. According to this arrangement, the bending blade (15 ') is not in the axis (BB ') of the snowboard (43) and extends substantially parallel to this axis.
Landscapes
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Dampers (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Claims (9)
- Ski équipé d'un dispositif d'amortissement du type comprenant une pièce de flexion reliée au ski par des moyens d'amortissement, la pièce de flexion étant une lame de flexion (15) souple dont la raideur est négligeable par rapport au ski proprement dit et étant reliée au ski de façon mobile, par au moins deux moyens d'amortissement (111, 112) formant chacun un moyen de liaison souple de la lame de flexion sur le ski (18, 20), constitué par une interface en matériau souple sollicitée au cisaillement lors du déplacement relatif de la lame de flexion par rapport au ski ; lesdits moyens d'amortissement étant espacés longitudinalement d'une certaine distance "D" ; le premier moyen (111) étant situé dans la zone de maximum de déformation par le troisième mode de flexion et le premier mode de torsion ou dans la zone de maximum de déformation par le deuxième mode de flexion et le second moyen (112) étant situé dans la zone de maximum de déformation par le premier mode de flexion.
- Ski équipé d'un dispositif d'amortissement selon la revendication 1, caractérisé en ce que la lame de flexion (15) est une lame ou un profilé ou un jonc métallique, en aluminium, en acier ou en matériau composite.
- Ski équipé d'un dispositif d'amortissement selon la revendication 2, caractérisé en ce que la lame de flexion a une largeur (1) comprise entre 10 et 60 millimètres, une épaisseur (e) comprise entre 1 et 5 millimètres et une longueur (L), comprise entre 100 et 1200 millimètres.
- Ski équipé d'un dispositif d'amortissement selon la revendication 1, 2 ou 3, caractérisé en ce que l'interface (18) est une couche en matériau viscoélastique soudée ou collée à la lame de flexion (15).
- Ski équipé d'un dispositif d'amortissement selon la revendication 4, caractérisé en ce que la couche en matériau viscoélastique a une surface comprise entre 200 et 6000 mm2 et une épaisseur "e1" comprise entre 0,5 et 4 millimètres.
- Ski équipé d'un dispositif d'amortissement selon l'une quelconque des revendications précédentes, caractérisé en ce que la lame (15) est reliée par un troisième moyen d'amortissement (M3) disposé entre les deux moyens (M1,M2).
- Ski équipé d'un dispositif d'amortissement selon l'une quelconque des revendications précédentes, caractérisé en ce que la lame de flexion (15) est disposée et fixée à la surface supérieure (12) du ski.
- Ski équipé d'un dispositif d'amortissement selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la lame de flexion (15) est disposée dans la structure du ski.
- Ski équipé d'un dispositif d'amortissement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il s'agit d'un ski du type alpin.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9301427A FR2701215B1 (fr) | 1993-02-05 | 1993-02-05 | Perfectionnement pour dispositif d'amortissement pour ski et ski équipé d'un tel dispositif. |
FR9301427 | 1993-02-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0609543A1 EP0609543A1 (fr) | 1994-08-10 |
EP0609543B1 true EP0609543B1 (fr) | 1998-05-13 |
Family
ID=9443881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93120492A Expired - Lifetime EP0609543B1 (fr) | 1993-02-05 | 1993-12-18 | Ski équipé d'un dispositif d'amortissement |
Country Status (6)
Country | Link |
---|---|
US (1) | US5465994A (fr) |
EP (1) | EP0609543B1 (fr) |
JP (2) | JPH06238027A (fr) |
AT (1) | ATE165988T1 (fr) |
DE (1) | DE69318532T2 (fr) |
FR (1) | FR2701215B1 (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5284357A (en) * | 1991-11-01 | 1994-02-08 | Tinkler Michael R | Apparatus and method for damping deflections and vibrations in skis |
FR2725378B1 (fr) * | 1994-10-10 | 1996-11-08 | Salomon Sa | Ensemble pour ski comprenant un element de fixation associe a un dispositif d'amortissement |
FR2729865B1 (fr) * | 1995-01-27 | 1997-04-04 | Salomon Sa | Paire de skis munis de dispositifs d'amortissement asymetriques de torsion |
FR2730390B1 (fr) * | 1995-02-10 | 1997-04-04 | Salomon Sa | Chaussure a flexibilite controlee |
FR2737417B1 (fr) * | 1995-08-02 | 1997-08-29 | Rossignol Sa | Dispositif amortisseur de vibrations pour planche de glisse sur neige |
FR2748399B1 (fr) * | 1996-05-09 | 1998-06-12 | Rossignol Sa | Dispositif amortisseur de vibrations pour planche de glisse sur neige |
US5820154A (en) * | 1997-04-29 | 1998-10-13 | Howe; John G. | Ski construction |
FR2763862B1 (fr) | 1997-05-30 | 1999-08-27 | Salomon Sa | Dispositif interface entre une chaussure et un ski alpin |
US6267402B1 (en) * | 1999-03-30 | 2001-07-31 | Nitinol Technologies, Inc. | Nitinol ski structures |
AT412839B (de) * | 2000-06-02 | 2005-08-25 | Atomic Austria Gmbh | Gleitvorrichtung, insbesondere schi, snowboard oder dgl. |
ITVE20030021A1 (it) * | 2003-06-10 | 2004-12-11 | Vittorio Quaggiotti | Sci da discesa. |
US7607679B2 (en) * | 2004-11-23 | 2009-10-27 | Anton F. Wilson | Suspension system for a ski |
EP1850922A4 (fr) * | 2005-02-16 | 2011-01-19 | Anton F Wilson | Snowboards |
FR2895914B1 (fr) * | 2006-01-09 | 2008-07-04 | Skis Rossignol Sas Soc Par Act | Perfectionnement pour planche de glisse sur neige |
FR2941627B1 (fr) * | 2009-01-30 | 2012-12-14 | Salomon Sas | Ski comportant un moyen d'amortissement des vibrations |
FR2947182B1 (fr) * | 2009-06-26 | 2011-09-09 | Salomon Sas | Planche de glisse |
DE102010047381A1 (de) * | 2010-10-05 | 2011-08-25 | Schnepf, Rolf, 76316 | Ski mit verstellbarer Vorspannung im Schaufelbereich |
US9950242B2 (en) | 2015-06-19 | 2018-04-24 | Anton F. Wilson | Automatically adaptive ski |
US10286288B1 (en) * | 2015-12-29 | 2019-05-14 | Alpine Radius Control Technologies, LLC | Torsional stabilizer for skis |
WO2023035062A1 (fr) * | 2021-09-08 | 2023-03-16 | Socpra Sciences Et Genie S.E.C. | Ski ayant une section de stabilisation, une paire de skis et un dispositif de stabilisation |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3260531A (en) * | 1964-01-31 | 1966-07-12 | Johan G F Heuvel | Terrain-conforming and torsionalresponsive skis |
FR2503569A1 (fr) * | 1981-04-09 | 1982-10-15 | Rossignol Sa | Ski |
FR2517213B1 (fr) * | 1981-11-27 | 1986-10-17 | Fischer Gmbh | Ski comportant des dispositifs pour la reduction asymetrique des oscillations de flexion |
AT383037B (de) * | 1984-05-18 | 1987-05-11 | Amf Sport Freizeitgeraete | Ski |
FR2575393A1 (fr) * | 1984-12-27 | 1986-07-04 | Rossignol Sa | Ski de neige |
FR2665081B1 (fr) * | 1990-07-30 | 1992-11-06 | Rossignol Sa | Surf de neige a caracteristiques asymetriques. |
EP0490044A1 (fr) * | 1990-12-14 | 1992-06-17 | Salomon S.A. | Ski pour sport d'hiver comprenant un raidisseur et une embase |
DE69101217T2 (de) * | 1990-12-14 | 1994-06-09 | Salomon Sa | Ski mit laufflächenteil, ober Körper und Support für Bindungen. |
FR2675392B1 (fr) * | 1991-04-22 | 1995-06-23 | Salomon Sa | Dispositif d'amortissement pour ski. |
US5269555A (en) * | 1991-06-14 | 1993-12-14 | Ruffinengo Piero G | Modification of the flexibility of skis |
FR2678517B1 (fr) * | 1991-07-04 | 1993-10-15 | Salomon Sa | Perfectionnement pour dispositif d'amortissement pour ski. |
US5284357A (en) * | 1991-11-01 | 1994-02-08 | Tinkler Michael R | Apparatus and method for damping deflections and vibrations in skis |
-
1993
- 1993-02-05 FR FR9301427A patent/FR2701215B1/fr not_active Expired - Fee Related
- 1993-12-18 DE DE69318532T patent/DE69318532T2/de not_active Expired - Fee Related
- 1993-12-18 AT AT93120492T patent/ATE165988T1/de active
- 1993-12-18 EP EP93120492A patent/EP0609543B1/fr not_active Expired - Lifetime
-
1994
- 1994-02-02 JP JP6010744A patent/JPH06238027A/ja active Pending
- 1994-02-04 US US08/191,466 patent/US5465994A/en not_active Expired - Fee Related
-
1996
- 1996-10-29 JP JP1996010984U patent/JP3039526U/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2701215B1 (fr) | 1995-04-14 |
FR2701215A1 (fr) | 1994-08-12 |
DE69318532D1 (de) | 1998-06-18 |
DE69318532T2 (de) | 1998-11-12 |
EP0609543A1 (fr) | 1994-08-10 |
US5465994A (en) | 1995-11-14 |
JPH06238027A (ja) | 1994-08-30 |
ATE165988T1 (de) | 1998-05-15 |
JP3039526U (ja) | 1997-07-22 |
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